The outbreak of coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in China has been declared a public health emergency of international concern. Despite lower mortality rate, SARS-CoV-2 has killed more people than SARS and MERS and the number keeps growing. Epidemic studies have been well described clinical features of patients with COVID-19, with the disease severity being an independent predictor of poor outcome. However, there is still no research investigating the prognostic factors of patients with COVID-19.

Inclusion Criteria:

• Adult aged >=18years old;
• Diagnosed with CONVID19. Diagnostic criteria including: Laboratory (RT-PCR) confirmed SARS-Cov-2 infection; CT of the lung conformed to the manifestation of viral pneumonia.
• Criteria for severe or critical ill conditions: Respiratory rate >=30/min; or Rest SPO2<=93%; or PaO2/FiO2<=300mmHg.

Exclusion Criteria:

• Near-death state (expected survival time less than 24 hours);
• Malignant tumor;
• Pregnancy or puerperium women;
• Patients who refused to participant.

Patients with COVID-19